GOES - X-ray flare-like events
             Daily summary
from 20131224 1900 to 20131225 1127  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20131225    0553 - 0558          C    -5.8356
    20131225    0638 - 0654          C    -5.3251
    20131225    0710 - 0712          C    -5.9626
    20131225    0810 - 0813          C    -5.9626
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.